The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2024
Filed:
Jan. 08, 2021
Seiko Epson Corporation, Toyko, JP;
Takashi Kawaguchi, Shiojiri, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
An electronic watch includes a driver controlled to be in an ON state in which a drive current is supplied to a coil of a watch motor, and an OFF state in which the drive current is not supplied, a current detector that detects a current value flowing through the coil, a driver controller that controls the driver, a polarity switching controller that alternately switches a polarity of the drive current to a first polarity and a second polarity, a sampling controller that, at a sampling cycle, intermittently causes the current detector and the driver controller to operate, and a sampling cycle setting controller that detects a sampling cycle setting condition and changes the sampling cycle in at least two stages of a first cycle and a second cycle longer than the first cycle.